It seems no one wants to do it, so after some calculations, I think I could make batch of 4040/5050 boards for 4€/piece + shipping.
2mm thick copper DTP,38mm diameter, 2oz copper layer, gold plated top layer, nickel plated bottom surface (just as good as gold for protection from oxidation and easy to lap/polish).
For “group buy” (single payment,single shipping address) price for 50+ pcs would be just 3€/piece.
This could be good option for USA buyers, to reduce not just PCB price, but I suppose domestic shipping is cheaper too.
For standard orders via my webshop shipping would depend on quantity since these boards will be quite heavy, around 20grams each.
Estimated shipping prices:
Priority airmail (non-tracked):
Up to 50gr - 1,97€
51 to 100gr - 2,97€
101 to 250gr - 5,97€
250 to 500gr - 9,97€
Registered airmail (tracked):
Up to 50gr - 3,97€
51 to 100gr - 4,97€
101 to 250gr - 7,97€
250 to 500gr - 12,97€
Packaging envelope is 10-20gr.
Since I don’t own Q8 (not a fan of sup cans), I will need help with exact dimensions, I’m also a little bit confused regarding screws,some pcb renderings have it,others don’t.
I would like to see interest, around 100pcs would be minimum, I think current list is close to that.
4040 footprint is compatible with Luxeon V, and Luxeon MZ,Luxeon MX, 5050 for SST-40,XHP50 etc.
I will have boards with 4000K Luxeon V soldered as option,of course.
Luxeon MZ is available as 3V LED and 5700K 90CRI at Mouser and Digikey.